xHCI 1.0: Isoch endpoint CErr field set
xHCI 1.0 specification specifies that CErr does not apply to Isoch endpoints
and shall be set to '0' for Isoch endpoints.
Signed-off-by: Andiry Xu <andiry.xu@amd.com>
Signed-off-by: Sarah Sharp <sarah.a.sharp@linux.intel.com>
diff --git a/drivers/usb/host/xhci-mem.c b/drivers/usb/host/xhci-mem.c
index 543833b..0414574 100644
--- a/drivers/usb/host/xhci-mem.c
+++ b/drivers/usb/host/xhci-mem.c
@@ -1190,12 +1190,12 @@
/* FIXME dig Mult and streams info out of ep companion desc */
/* Allow 3 retries for everything but isoc;
- * error count = 0 means infinite retries.
+ * CErr shall be set to 0 for Isoch endpoints.
*/
if (!usb_endpoint_xfer_isoc(&ep->desc))
ep_ctx->ep_info2 = cpu_to_le32(ERROR_COUNT(3));
else
- ep_ctx->ep_info2 = cpu_to_le32(ERROR_COUNT(1));
+ ep_ctx->ep_info2 = cpu_to_le32(ERROR_COUNT(0));
ep_ctx->ep_info2 |= cpu_to_le32(xhci_get_endpoint_type(udev, ep));